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(No Model.) 2 Sheets-Sheet 1.

M. D. GZVETKOVICS.

WEIR AND SLUIGB.

No. 331,038. Patented NGV. 24, 1835.

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. M. D. GZVETKOVICS.

WEIR AND SLUIGE.

Patented Nov. 24, 1885.

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N. PETERS. Pnvwumagmpher. wnsmngmfao NITED STATES MITAR DEMETER OZVETKOVIOS, OF VIENNA, AUSTRIA-HUNGARY, ASSIGNOR OF TWO-THIRDS TO EDMUND HORBAOZEWSKI AND VILHELM VON KO- PAL, BOTH OF SAME PLACE.

WElR AND SLUICE.

SPECIFICATION forming part of Letters Patent No. 331,038, dated November 24, 1885.

Application [iled June 3, 1885. Serial No. 167,522.

(No model.) Patented in Austria-Hungary July 18, 1884, No. 34 and No. 1,198.

To a/ZZ whom it may concern,.-

Beit known that I, MITAR DEMETER GZVET- KOVICs, a subject of the Emperor of Austria- Hungary, and a resident of the city of Vienna, in the Empire of Austria-Hungary, have invented certain new and useful lmpovements in Weirs and Sluices, of which the following is a specification.

The object of this invention is the construc- IO tion of weirs and sluices in such a manner that they regulate the water-height automatically, are raised automatically,like a fan,by the pressure of the water, are yet easily pressed together, like a fan,by slight mechanical pressure, and do not obstruct either the passage of floats or sand and gravel or floating bodies.

In the accompanying drawings, Figures 1, 2, 3, and 4 show the substance of this invention. Figs. 5 and 6 show longitudinal sections of a complete construction. Figs. l and 5 show the weir or sluice raised, and Figs. 2 and 6 show the same lowered. Fig. 3 shows a front view, and Fig. 4 a plan.

' The Weir or sluice consists of any suitable number of sluice-hatches A,which are pivoted by means of rods B to a horizontal axis, C, xed at the bottom of the running water.

In Figs. 5 and 6 the hatches A are numbered consecutively, l, 2, 3, 4, 5, and 6.

D D are the sidewalls or shores of the running water.

The uppermost hatch is connected to a grate, E, of wood or of hollow tubes,which serves as a iloat to make the uppermost hatch 3 5 specifically lighter than water. This grate E also serves to cause floating bodies approaching the weirto pass over the edge of the uppermost hatch, but allows sand and gravel to pass through.

The hatches are provided with projecting edges a, which gear together,so that on raising the uppermost hatch, 6', Fig. 5, this hatch takes with it the next hatch, 5, this one the next, 4, and so on. As soon as the uppermost hatch is raised from the position shown in Figs. 2 and 6 its depending flange creates an obstacle to the Elow of the water, which is thus caused to rise. This rising of the water causes the grating to rise still farther,and the hatches 5 4 3 are lifted one after another until 53 they have assumed the position shown in Figs. 1, 2, and 5, thus forming a dam, over which the increasing water can flow as it accumulates.

The hatch 2 is fastened by a chain to the 55 bottom of the stream; but the lowest hatch, 1, is loose, so as to be raised by the water-pressure, leaving a space beneath for the escape of superliuous water, which carries with it the sand and gravel, and thereby prevents their 6o accumulation.

The arrangement G H J K (shown in Fig. 5) serves for lowering the weir or sluice. On opening the valve G the water passes through the passage H to the water-wheel J, to the shaft of which one end of a chain or rope, K, is attached, the other end of which is attached to the uppermost hatch. By the rotation of the water-wheel J the rope K is wound up and draws the hatch 6, and with it the other 7o hatches, to the position shown in Figs. 2 and 6.

The arrangement L M (shown in Fig. 5) serves for automatically lowering the weir or sluice in the case of a iiood. The opening L, which ordinarily is situated above the level of the water, communicates, through the passage M, with the passage H leading to the above-mentioned water-wheel J. In the case of a flood the water rising above the normal height reaches the opening L, and flows 8o through the passages M H to the water-wheel J, which, by its rotation, winds up the rope K,and thus lowers the hatches of the Weir A.

l claiml. The hatches A,gearing together and piv- 8 5 oted at C, substantially as described.

2. The combination of the hatches A with the arrangement serving for automatically lowering the same, and consisting of the passage H, provided witha valve,Water-wheel 9o J, and rope or chain K, substantially as described.

3. rlhe combination of the-hatches A with the arrangement L M H J K, for automatically 5 lowering the same in the case of a iiood, sub- Stantially as described.

4. The combination of the hatches A with the iioating grate Esubstantially as described. 5. The combination, with a series of hatches 1o pivoted at one end and connected at the other end' with a fastened chain, by which their upper movement is restrained and restricted, l

of a, supplementary hatch constructed and adapted to rise and fall independently of the other hatches, substantially as described.

In testimony whereof l have affixed my signature in presence of two witnesses.

MITAR DEMETER CZVETKOVICS.

Witnesses:

C. O. PAGET, E. G. F. MOELLER. 

